1002440312 has 8 divisors (see below), whose sum is σ = 1879575600. Its totient is φ = 501220152.

The previous prime is 1002440311. The next prime is 1002440317. The reversal of 1002440312 is 2130442001.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002440311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62652512 + ... + 62652527.

It is an arithmetic number, because the mean of its divisors is an integer number (234946950).

Almost surely, 2^1002440312 is an apocalyptic number.

It is an amenable number.

1002440312 is a deficient number, since it is larger than the sum of its proper divisors (877135288).

1002440312 is a wasteful number, since it uses less digits than its factorization.

1002440312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125305045 (or 125305041 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1002440312 is about 31661.3378112802. The cubic root of 1002440312 is about 1000.8127765486.

Adding to 1002440312 its reverse (2130442001), we get a palindrome (3132882313).

The spelling of 1002440312 in words is "one billion, two million, four hundred forty thousand, three hundred twelve".